Add 12/20 and 4/56
12/20 + 4/56 is 47/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 20 × 14 = 280,
12/20 = 12 × 14/20 × 14 = 168/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
4/56 = 4 × 5/56 × 5 = 20/280 - Add the two like fractions:
168/280 + 20/280 = 168 + 20/280 = 188/280 - 188/280 simplified gives 47/70
- So, 12/20 + 4/56 = 47/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/20+4/56 12/20+8/56 12/40+4/56 36/20+4/56 12/20+12/56 12/60+4/56 60/20+4/56 12/20+20/56 84/20+4/56 12/20+28/56